Kelly Williford (born October 21, 1994) is an American born-Dominican former tennis player.
On 16 December 2019, she achieved her career-high singles ranking of world No. 1070. On 6 August 2018, she peaked at No. 619 in the doubles rankings.
Williford has represented the Dominican Republic in the Fed Cup, where she has a win–loss record of 5–7.
She is a native of the Basking Ridge section of Bernards Township, New Jersey, where she attended Ridge High School before moving on to play for the Virginia Tech Hokies women's tennis team. Kelly Williford, Virginia Tech Hokies women's tennis. Accessed Sep 3, 2019. "High School: Ridge; Hometown: Basking Ridge, N.J."
| { class="wikitable" style="font-size:85%" ! Legend |
| $25,000 tournaments |
| $15,000 tournaments |
| Hard (1–5) |
| Clay (0–2) |
| Loss | 0–1 | Aug 2017 | ITF Mrągowo, Poland | 15,000 | Clay | Akiko Okuda | Angelica Moratelli Marine Partaud | 2–6, 3–6 |
| Loss | 0–2 | Sep 2017 | ITF Cairo, Egypt | 15,000 | Clay | Akiko Okuda | Victoria Kan Maria Zotova | 3–6, 3–6 |
| Loss | 0–3 | Oct 2019 | ITF Norman, US | 15,000 | Hard | Amy Zhu | Fernanda Labraña Anna Turati | 1–6, 5–7 |
| Loss | 0–4 | Oct 2019 | ITF Metepec, Mexico | 15,000 | Hard | Kirsten-Andrea Weedon | Sarah Lee Amber Washington | 1–6, 6–4, 6–10 |
| Loss | 0–5 | Jun 2021 | ITF Santo Domingo, Dominican Republic | 25,000 | Hard | Ana Carmen Zamburek | Emina Bektas Quinn Gleason | 5–7, 4–6 |
| Loss | 0–6 | Oct 2021 | ITF Norman, US | 15,000 | Hard | McKenna Schaefbauer | Oona Orpana Martina Zerulo | 2–6, 7–5, 6–10 |
| Loss | 0–7 | May 2022 | ITF Cancún, Mexico | 15,000 | Hard | Kariann Pierre-Louis | Saki Imamura Miho Kuramochi | 6–3, 3–6, 8–10 |
| Win | 1–7 | Sep 2022 | ITF Cancún, Mexico | 15,000 | Hard | Anna Ulyashchenko | Nadia Echeverría Alam Jessica Hinojosa Gomez | 7–6(5), 4–6, 10–6 |
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